Mesoporous alumina

摘要

Alumina with a fairly large surface area (415 m~2g~-1) and narrow pore size distribution (pore diameter ～ 3 nm), containing octahedral and tetrahedral alumi- num, prepared by long chain neutral amine as the surfactant, shows some evidence of textured structure. This material also contains disordered hexagonal structure, but use of partially hydrolyzed aluminum alkoxide with short chain amine tem- plates, results in amorphous alumina with a surface area of 340 m~2g~-1. Ise of a polyethylene oxide as the surfactant, did not give the mesoporous structure in the absence of the template.